/**
* Handle a request for temporary OAuth credentials
*
* Make sure the request is kosher, then emit a set of temporary
* credentials -- AKA an unauthorized request token.
*
* @param array $args array of arguments
*
* @return void
*/
function handle($args)
{
parent::handle($args);
$datastore = new ApiStatusNetOAuthDataStore();
$server = new OAuthServer($datastore);
$hmac_method = new OAuthSignatureMethod_HMAC_SHA1();
$server->add_signature_method($hmac_method);
try {
$req = OAuthRequest::from_request();
// verify callback
if (!$this->verifyCallback($req->get_parameter('oauth_callback'))) {
throw new OAuthException("You must provide a valid URL or 'oob' in oauth_callback.", 400);
}
// check signature and issue a new request token
$token = $server->fetch_request_token($req);
common_log(LOG_INFO, sprintf("API OAuth - Issued request token %s for consumer %s with oauth_callback %s", $token->key, $req->get_parameter('oauth_consumer_key'), "'" . $req->get_parameter('oauth_callback') . "'"));
// return token to the client
$this->showRequestToken($token);
} catch (OAuthException $e) {
common_log(LOG_WARNING, 'API OAuthException - ' . $e->getMessage());
// Return 401 for for bad credentials or signature problems,
// and 400 for missing or unsupported parameters
$code = $e->getCode();
$this->clientError($e->getMessage(), empty($code) ? 401 : $code, 'text');
}
}
/**
* @param GetResponseEvent $event
* @throws \Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException
* @return bool
*/
public function onKernelRequest(GetResponseEvent $event)
{
if (strpos($event->getRequest()->attributes->get('_controller'), 'Api\\Resource') !== false) {
header('Access-Control-Allow-Origin: *');
$controller = explode('::', $event->getRequest()->attributes->get('_controller'));
$reflection = new \ReflectionMethod($controller[0], $controller[1]);
$scopeAnnotation = $this->reader->getMethodAnnotation($reflection, 'Etu\\Core\\ApiBundle\\Framework\\Annotation\\Scope');
if ($scopeAnnotation) {
$requiredScope = $scopeAnnotation->value;
} else {
$requiredScope = null;
}
if (!$requiredScope) {
$requiredScope = 'public';
}
$request = $event->getRequest();
$token = $request->query->get('access_token');
$access = $this->server->checkAccess($token, $requiredScope);
if (!$access->isGranted()) {
$event->setResponse($this->formatter->format($event->getRequest(), ['error' => $access->getError(), 'error_message' => $access->getErrorMessage()], 403));
} else {
$event->getRequest()->attributes->set('_oauth_token', $access->getToken());
}
}
}
/**
* Class handler.
*
* @param array $args array of arguments
*
* @return void
*/
function handle($args)
{
parent::handle($args);
$datastore = new ApiStatusNetOAuthDataStore();
$server = new OAuthServer($datastore);
$hmac_method = new OAuthSignatureMethod_HMAC_SHA1();
$server->add_signature_method($hmac_method);
$atok = $app = null;
// XXX: Insist that oauth_token and oauth_verifier be populated?
// Spec doesn't say they MUST be.
try {
$req = OAuthRequest::from_request();
$this->reqToken = $req->get_parameter('oauth_token');
$this->verifier = $req->get_parameter('oauth_verifier');
$app = $datastore->getAppByRequestToken($this->reqToken);
$atok = $server->fetch_access_token($req);
} catch (Exception $e) {
common_log(LOG_WARNING, 'API OAuthException - ' . $e->getMessage());
common_debug(var_export($req, true));
$code = $e->getCode();
$this->clientError($e->getMessage(), empty($code) ? 401 : $code, 'text');
return;
}
if (empty($atok)) {
// Token exchange failed -- log it
$msg = sprintf('API OAuth - Failure exchanging OAuth request token for access token, ' . 'request token = %s, verifier = %s', $this->reqToken, $this->verifier);
common_log(LOG_WARNING, $msg);
// TRANS: Client error given from the OAuth API when the request token or verifier is invalid.
$this->clientError(_('Invalid request token or verifier.'), 400, 'text');
} else {
common_log(LOG_INFO, sprintf("Issued access token '%s' for application %d (%s).", $atok->key, $app->id, $app->name));
$this->showAccessToken($atok);
}
}
function omb_oauth_server()
{
static $server = null;
if (is_null($server)) {
$server = new OAuthServer(omb_oauth_datastore());
$server->add_signature_method(omb_hmac_sha1());
}
return $server;
}
function handleOAuthBodyPOST($oauth_consumer_key, $oauth_consumer_secret)
{
$request_headers = OAuthUtil::get_headers();
// print_r($request_headers);
// Must reject application/x-www-form-urlencoded
if ($request_headers['Content-type'] == 'application/x-www-form-urlencoded' ) {
throw new Exception("OAuth request body signing must not use application/x-www-form-urlencoded");
}
if (@substr($request_headers['Authorization'], 0, 6) == "OAuth ") {
$header_parameters = OAuthUtil::split_header($request_headers['Authorization']);
// echo("HEADER PARMS=\n");
// print_r($header_parameters);
$oauth_body_hash = $header_parameters['oauth_body_hash'];
// echo("OBH=".$oauth_body_hash."\n");
}
if ( ! isset($oauth_body_hash) ) {
throw new Exception("OAuth request body signing requires oauth_body_hash body");
}
// Verify the message signature
$store = new TrivialOAuthDataStore();
$store->add_consumer($oauth_consumer_key, $oauth_consumer_secret);
$server = new OAuthServer($store);
$method = new OAuthSignatureMethod_HMAC_SHA1();
$server->add_signature_method($method);
$request = OAuthRequest::from_request();
global $LastOAuthBodyBaseString;
$LastOAuthBodyBaseString = $request->get_signature_base_string();
// echo($LastOAuthBodyBaseString."\n");
try {
$server->verify_request($request);
} catch (Exception $e) {
$message = $e->getMessage();
throw new Exception("OAuth signature failed: " . $message);
}
$postdata = file_get_contents('php://input');
// echo($postdata);
$hash = base64_encode(sha1($postdata, TRUE));
if ( $hash != $oauth_body_hash ) {
throw new Exception("OAuth oauth_body_hash mismatch");
}
return $postdata;
}
public function genSign($key, $secret, $token, $tokenSecret, $httpMethod, $endpoint)
{
$authServer = new OAuthServer(new MockOAuthDataStore());
$hmac_method = new OAuthSignatureMethodHmacSha1();
$authServer->add_signature_method($hmac_method);
$sig_method = $hmac_method;
$authConsumer = new OAuthConsumer($key, $secret, NULL);
$authToken = NULL;
$authToken = new OAuthToken($token, $tokenSecret);
//$params is the query param array which is required only in the httpMethod is "GET"
$params = array();
//TODO: set the Query parameters to $params if httpMethod is "GET"
$acc_req = OAuthRequest::from_consumer_and_token($authConsumer, $authToken, $httpMethod, $endpoint, $params);
$acc_req->sign_request($sig_method, $authConsumer, $authToken);
return OAuthutil::parseQueryString($acc_req);
}
public function __construct($data_store)
{
parent::__construct($data_store);
$hmac_method = new OAuthSignatureMethod_HMAC_SHA1();
$this->add_signature_method($hmac_method);
$this->timestamp_threshold = 300;
// a token (in requestToken) expires before 300 secondes
}
public function access_token($params)
{
try {
$server = new OAuthServer($this->oauthDataStore);
$server->add_signature_method(new OAuthSignatureMethod_HMAC_SHA1());
$server->add_signature_method(new OAuthSignatureMethod_PLAINTEXT());
$request = OAuthRequest::from_request();
$token = $server->fetch_access_token($request);
if ($token) {
echo $token->to_string();
}
} catch (OAuthException $e) {
$this->sendServerError(401, $e->getMessage());
} catch (Exception $e) {
$this->sendServerError(400, $e->getMessage());
}
}
/**
* Class handler.
*
* @param array $args array of arguments
*
* @return void
*/
function handle($args)
{
parent::handle($args);
$datastore = new ApiStatusNetOAuthDataStore();
$server = new OAuthServer($datastore);
$hmac_method = new OAuthSignatureMethod_HMAC_SHA1();
$server->add_signature_method($hmac_method);
try {
$req = OAuthRequest::from_request();
$token = $server->fetch_request_token($req);
print $token;
} catch (OAuthException $e) {
common_log(LOG_WARNING, 'API OAuthException - ' . $e->getMessage());
header('HTTP/1.1 401 Unauthorized');
header('Content-Type: text/html; charset=utf-8');
print $e->getMessage() . "\n";
}
}
function __construct($consumer_key, $nonce, $timestamp, $signature_method, $signature, $token)
{
$this->setParam('oauth_token', $token, true);
$this->setParam('oauth_consumer_key', $consumer_key, true);
$this->setParam('oauth_nonce', $nonce, true);
$this->setParam('oauth_timestamp', $timestamp, true);
$this->setParam('oauth_signature_method', $signature_method, true);
$this->setParam('oauth_signature', $signature, true);
parent::__construct();
}
/**
* Create new Basic LTI access object
*
* @param string $key
* @param string $secret
*
* @throws \Exception
*/
public function __construct($key, $secret)
{
$request = \OAuthRequest::from_request();
$oauth_consumer_key = $request->get_parameter("oauth_consumer_key");
// ensure the key in the request matches the locally supplied one
if ($oauth_consumer_key == null) {
throw new \Exception("Missing oauth_consumer_key in request");
}
if ($oauth_consumer_key != $key) {
throw new \Exception("oauth_consumer_key doesn't match supplied key");
}
// verify the message signature
$store = new TrivialOAuthDataStore($oauth_consumer_key, $secret);
$server = new \OAuthServer($store);
$method = new \OAuthSignatureMethod_HMAC_SHA1();
$server->add_signature_method($method);
$server->verify_request($request);
$this->request = $request;
}
function handle_oauth_body_post($oauthconsumerkey, $oauthconsumersecret, $body, $requestheaders = null)
{
if ($requestheaders == null) {
$requestheaders = OAuthUtil::get_headers();
}
// Must reject application/x-www-form-urlencoded.
if (isset($requestheaders['Content-type'])) {
if ($requestheaders['Content-type'] == 'application/x-www-form-urlencoded') {
throw new OAuthException("OAuth request body signing must not use application/x-www-form-urlencoded");
}
}
if (@substr($requestheaders['Authorization'], 0, 6) == "OAuth ") {
$headerparameters = OAuthUtil::split_header($requestheaders['Authorization']);
$oauthbodyhash = $headerparameters['oauth_body_hash'];
}
if (!isset($oauthbodyhash)) {
throw new OAuthException("OAuth request body signing requires oauth_body_hash body");
}
// Verify the message signature.
$store = new TrivialOAuthDataStore();
$store->add_consumer($oauthconsumerkey, $oauthconsumersecret);
$server = new OAuthServer($store);
$method = new OAuthSignatureMethod_HMAC_SHA1();
$server->add_signature_method($method);
$request = OAuthRequest::from_request();
try {
$server->verify_request($request);
} catch (\Exception $e) {
$message = $e->getMessage();
throw new OAuthException("OAuth signature failed: " . $message);
}
$postdata = $body;
$hash = base64_encode(sha1($postdata, true));
if ($hash != $oauthbodyhash) {
throw new OAuthException("OAuth oauth_body_hash mismatch");
}
return $postdata;
}
public function authorizeAction()
{
$auth = Zend_Auth::getInstance();
$store = OAuthStore::instance();
$registry = Zend_Registry::getInstance();
$router = Zend_Controller_Front::getInstance()->getRouter();
$request = $this->getRequest();
if (!$auth->hasIdentity()) {
Zend_Controller_Front::getInstance()->registerPlugin(new Ml_Plugins_LoginRedirect());
}
$this->_helper->loadOauthstore->preloadServer();
$server = new OAuthServer();
$form = Ml_Model_Api::authorizeForm();
// Check if there is a valid request token in the current request
// Returns an array with the
//consumer key, consumer secret, token, token secret and token type.
$rs = $server->authorizeVerify();
$consumer = $store->getConsumer($rs['consumer_key'], $auth->getIdentity());
$this->view->consumerInfo = $consumer;
if ($request->isPost() && $form->isValid($request->getPost())) {
$values = $form->getValues();
if (isset($values['allow'])) {
$authorized = true;
} else {
if (isset($values['deny'])) {
$authorized = false;
}
}
if (isset($authorized)) {
$server->authorizeFinish($authorized, $auth->getIdentity());
//If no oauth_callback, the user is redirected to
$this->_redirect($router->assemble(array(), "accountapps") . "?new_addition", array("exit"));
}
}
$this->view->authorizeForm = $form;
}
/**
* Class handler.
*
* @param array $args array of arguments
*
* @return void
*/
function handle($args)
{
parent::handle($args);
$datastore = new ApiStatusNetOAuthDataStore();
$server = new OAuthServer($datastore);
$hmac_method = new OAuthSignatureMethod_HMAC_SHA1();
$server->add_signature_method($hmac_method);
$atok = null;
try {
$req = OAuthRequest::from_request();
$atok = $server->fetch_access_token($req);
} catch (OAuthException $e) {
common_log(LOG_WARNING, 'API OAuthException - ' . $e->getMessage());
common_debug(var_export($req, true));
$this->outputError($e->getMessage());
return;
}
if (empty($atok)) {
common_debug('couldn\'t get access token.');
print "Token exchange failed. Has the request token been authorized?\n";
} else {
print $atok;
}
}
public function actionAuthorize()
{
//登陆用户
$user_id = Yii::app()->user->id;
$model = new LoginForm();
$errmsg = '';
// 取得 oauth store 和 oauth server 对象
$server = new OAuthServer();
try {
// 检查当前请求中是否包含一个合法的请求token
// 返回一个数组, 包含consumer key, consumer secret, token, token secret 和 token type.
$rs = $server->authorizeVerify($user_id);
// 没有登录时不允许跳转
if (!empty($user_id)) {
//当application_type 为 system 时，可以不须经过用户授权
if ($rs['application_type'] == 'system') {
$authorized = True;
$server->authorizeFinish($authorized, $user_id);
}
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
// 判断用户是否点击了 "allow" 按钮(或者你可以自定义为其他标识)
$authorized = True;
// 设置token的认证状态(已经被认证或者尚未认证)
// 如果存在 oauth_callback 参数, 重定向到客户(消费方)地址
$verifier = $server->authorizeFinish($authorized, $user_id);
// 如果没有 oauth_callback 参数, 显示认证结果
// ** 你的代码 **
echo $verifier;
die;
} else {
#echo 'Error';
}
} else {
// if it is ajax validation request
if (isset($_POST['ajax']) && $_POST['ajax'] === 'login-form') {
echo EActiveForm::validate($model);
Yii::app()->end();
}
// collect user input data
if (isset($_POST['LoginForm'])) {
$model->attributes = $_POST['LoginForm'];
// validate user input and redirect to the previous page if valid
if ($model->validate() && $model->login()) {
$this->refresh();
}
}
}
} catch (OAuthException $e) {
$errmsg = $e->getMessage();
throw new CHttpException(401, $errmsg);
// 请求中没有包含token, 显示一个使用户可以输入token以进行验证的页面
// ** 你的代码 **
} catch (OAuthException2 $e) {
$errmsg = $e->getMessage();
// 请求了一个错误的token
// ** 你的代码 **
throw new CHttpException(401, $errmsg);
}
$data = array('rs' => $rs, 'model' => $model, 'errmsg' => $errmsg);
$this->render('Authorize', $data);
}
/**
* Verifies the OAuth request signature, sets the auth user
* and access type (read-only or read-write)
*
* @param OAuthRequest $request the OAuth Request
*
* @return nothing
*/
function checkOAuthRequest($request)
{
$datastore = new ApiGNUsocialOAuthDataStore();
$server = new OAuthServer($datastore);
$hmac_method = new OAuthSignatureMethod_HMAC_SHA1();
$server->add_signature_method($hmac_method);
try {
$server->verify_request($request);
$consumer = $request->get_parameter('oauth_consumer_key');
$access_token = $request->get_parameter('oauth_token');
$app = Oauth_application::getByConsumerKey($consumer);
if (empty($app)) {
common_log(LOG_WARNING, 'API OAuth - Couldn\'t find the OAuth app for consumer key: ' . $consumer);
// TRANS: OAuth exception thrown when no application is found for a given consumer key.
throw new OAuthException(_('No application for that consumer key.'));
}
// set the source attr
if ($app->name != 'anonymous') {
$this->source = $app->name;
}
$appUser = Oauth_application_user::getKV('token', $access_token);
if (!empty($appUser)) {
// If access_type == 0 we have either a request token
// or a bad / revoked access token
if ($appUser->access_type != 0) {
// Set the access level for the api call
$this->access = $appUser->access_type & Oauth_application::$writeAccess ? self::READ_WRITE : self::READ_ONLY;
// Set the auth user
if (Event::handle('StartSetApiUser', array(&$user))) {
$user = User::getKV('id', $appUser->profile_id);
if (!empty($user)) {
if (!$user->hasRight(Right::API)) {
// TRANS: Authorization exception thrown when a user without API access tries to access the API.
throw new AuthorizationException(_('Not allowed to use API.'));
}
}
$this->auth_user = $user;
// FIXME: setting the value returned by common_current_user()
// There should probably be a better method for this. common_set_user()
// does lots of session stuff.
global $_cur;
$_cur = $this->auth_user;
Event::handle('EndSetApiUser', array($user));
}
$msg = "API OAuth authentication for user '%s' (id: %d) on behalf of " . "application '%s' (id: %d) with %s access.";
common_log(LOG_INFO, sprintf($msg, $this->auth_user->nickname, $this->auth_user->id, $app->name, $app->id, ($this->access = self::READ_WRITE) ? 'read-write' : 'read-only'));
} else {
// TRANS: OAuth exception given when an incorrect access token was given for a user.
throw new OAuthException(_('Bad access token.'));
}
} else {
// Also should not happen.
// TRANS: OAuth exception given when no user was found for a given token (no token was found).
throw new OAuthException(_('No user for that token.'));
}
} catch (OAuthException $e) {
$this->logAuthFailure($e->getMessage());
common_log(LOG_WARNING, 'API OAuthException - ' . $e->getMessage());
$this->clientError($e->getMessage(), 401);
}
}
/**
* Verifies the OAuth request signature, sets the auth user
* and access type (read-only or read-write)
*
* @param OAuthRequest $request the OAuth Request
*
* @return nothing
*/
function checkOAuthRequest($request)
{
$datastore = new ApiStatusNetOAuthDataStore();
$server = new OAuthServer($datastore);
$hmac_method = new OAuthSignatureMethod_HMAC_SHA1();
$server->add_signature_method($hmac_method);
try {
$server->verify_request($request);
$consumer = $request->get_parameter('oauth_consumer_key');
$access_token = $request->get_parameter('oauth_token');
$app = Oauth_application::getByConsumerKey($consumer);
if (empty($app)) {
common_log(LOG_WARNING, 'Couldn\'t find the OAuth app for consumer key: ' . $consumer);
throw new OAuthException('No application for that consumer key.');
}
// set the source attr
$this->source = $app->name;
$appUser = Oauth_application_user::staticGet('token', $access_token);
if (!empty($appUser)) {
// If access_type == 0 we have either a request token
// or a bad / revoked access token
if ($appUser->access_type != 0) {
// Set the access level for the api call
$this->access = $appUser->access_type & Oauth_application::$writeAccess ? self::READ_WRITE : self::READ_ONLY;
// Set the auth user
if (Event::handle('StartSetApiUser', array(&$user))) {
$this->auth_user = User::staticGet('id', $appUser->profile_id);
Event::handle('EndSetApiUser', array($user));
}
$msg = "API OAuth authentication for user '%s' (id: %d) on behalf of " . "application '%s' (id: %d) with %s access.";
common_log(LOG_INFO, sprintf($msg, $this->auth_user->nickname, $this->auth_user->id, $app->name, $app->id, ($this->access = self::READ_WRITE) ? 'read-write' : 'read-only'));
} else {
throw new OAuthException('Bad access token.');
}
} else {
// Also should not happen
throw new OAuthException('No user for that token.');
}
} catch (OAuthException $e) {
common_log(LOG_WARNING, 'API OAuthException - ' . $e->getMessage());
$this->clientError($e->getMessage(), 401, $this->format);
exit;
}
}
<?php
$server = new OAuthServer(new DataApi_OAuthDataStore());
$server->add_signature_method(new OAuthSignatureMethod_HMAC_SHA1());
$request = OAuthRequest::from_request();
try {
if ($server->verify_request($request)) {
echo json_encode(true);
}
} catch (Exception $e) {
echo json_encode("Exception: " . $e->getMessage());
}
class DataApi_OAuthDataStore extends OAuthDataStore
{
function lookup_consumer($consumer_key)
{
$consumer_secrets = array('thisisakey' => 'thisisasecret', 'anotherkey' => 'f3ac5b093f3eab260520d8e3049561e6');
if (isset($consumer_secrets[$consumer_key])) {
return new OAuthConsumer($consumer_key, $consumer_secrets[$consumer_key], NULL);
} else {
return false;
}
}
function lookup_token($consumer, $token_type, $token)
{
// we are not using tokens, so return empty token
return new OAuthToken("", "");
}
function lookup_nonce($consumer, $token, $nonce, $timestamp)
{
// @todo lookup nonce and make sure it hasn't been used before (perhaps in combination with timestamp?)
/**
*
**/
public function access_token_action()
{
$server = new OAuthServer();
$server->accessToken();
$this->render_nothing();
}
function __construct($parm = false, $usesession = true, $doredirect = true)
{
// If this request is not an LTI Launch, either
// give up or try to retrieve the context from session
if (!is_lti_request()) {
$this->message = 'Request is missing LTI information';
if ($usesession === false) {
return;
}
if (strlen(session_id()) > 0) {
$row = $_SESSION['_lti_row'];
if (isset($row)) {
$this->row = $row;
}
$context_id = $_SESSION['_lti_context_id'];
if (isset($context_id)) {
$this->context_id = $context_id;
}
$info = $_SESSION['_lti_context'];
if (isset($info)) {
$this->info = $info;
$this->valid = true;
return;
}
$this->message = "Could not find context in session";
return;
}
$this->message = "Session not available";
return;
}
// Insure we have a valid launch
if (empty($_REQUEST["oauth_consumer_key"])) {
$this->message = "Missing oauth_consumer_key in request";
return;
}
$oauth_consumer_key = $_REQUEST["oauth_consumer_key"];
// Find the secret - either form the parameter as a string or
// look it up in a database from parameters we are given
$secret = false;
$row = false;
if (is_string($parm)) {
$secret = $parm;
} else {
if (!is_array($parm)) {
$this->message = "Constructor requires a secret or database information.";
return;
} else {
$sql = 'SELECT * FROM ' . $parm['table'] . ' WHERE ' . ($parm['key_column'] ? $parm['key_column'] : 'oauth_consumer_key') . '=' . "'" . mysql_real_escape_string($oauth_consumer_key) . "'";
$result = mysql_query($sql);
$num_rows = mysql_num_rows($result);
if ($num_rows != 1) {
$this->message = "Your consumer is not authorized oauth_consumer_key=" . $oauth_consumer_key;
return;
} else {
while ($row = mysql_fetch_assoc($result)) {
$secret = $row[$parms['secret_column'] ? $parms['secret_column'] : 'secret'];
$context_id = $row[$parms['context_column'] ? $parms['context_column'] : 'context_id'];
if ($context_id) {
$this->context_id = $context_id;
}
$this->row = $row;
break;
}
if (!is_string($secret)) {
$this->message = "Could not retrieve secret oauth_consumer_key=" . $oauth_consumer_key;
return;
}
}
}
}
// Verify the message signature
$store = new TrivialOAuthDataStore();
$store->add_consumer($oauth_consumer_key, $secret);
$server = new OAuthServer($store);
$request = OAuthRequest::from_request();
$method = new OAuthSignatureMethod_HMAC_SHA1();
$server->add_signature_method($method);
$method = new OAuthSignatureMethod_HMAC_SHA256();
$server->add_signature_method($method);
$this->basestring = $request->get_signature_base_string();
try {
$server->verify_request($request);
$this->valid = true;
} catch (Exception $e) {
$this->message = $e->getMessage();
return;
}
// Store the launch information in the session for later
$newinfo = array();
foreach ($_POST as $key => $value) {
if (get_magic_quotes_gpc()) {
$value = stripslashes($value);
}
if ($key == "basiclti_submit") {
continue;
}
if (strpos($key, "oauth_") === false) {
$newinfo[$key] = $value;
continue;
}
if ($key == "oauth_consumer_key") {
$newinfo[$key] = $value;
continue;
}
}
$this->info = $newinfo;
if ($usesession == true and strlen(session_id()) > 0) {
$_SESSION['_lti_context'] = $this->info;
unset($_SESSION['_lti_row']);
unset($_SESSION['_lti_context_id']);
if ($this->row) {
$_SESSION['_lti_row'] = $this->row;
}
if ($this->context_id) {
$_SESSION['_lti_context_id'] = $this->context_id;
}
}
if ($this->valid && $doredirect) {
$this->redirect();
$this->complete = true;
}
}
function __construct($parm = false, $usesession = true, $doredirect = true)
{
global $link;
$this->message = "blti loaded";
// If this request is not an LTI Launch, either
// give up or try to retrieve the context from session
if (!is_basic_lti_request()) {
if ($usesession === false) {
return;
}
if (strlen(session_id()) > 0) {
$row = $_SESSION['_basiclti_lti_row'];
if (isset($row)) {
$this->row = $row;
}
$context_id = $_SESSION['_basiclti_lti_context_id'];
if (isset($context_id)) {
$this->context_id = $context_id;
}
$info = $_SESSION['_basic_lti_context'];
if (isset($info)) {
$this->info = $info;
$this->valid = true;
return;
}
$this->message = "Could not find context in session";
return;
}
$this->message = "Session not available";
return;
}
// Insure we have a valid launch
if (empty($_REQUEST["oauth_consumer_key"])) {
$this->message = "Missing oauth_consumer_key in request";
return;
}
$oauth_consumer_key = $_REQUEST["oauth_consumer_key"];
// Find the secret - either from the parameter as a string or
// look it up in a database from parameters we are given
$secret = false;
$row = false;
if (is_string($parm)) {
$secret = $parm;
} else {
if (!is_array($parm)) {
$this->message = "Constructor requires a secret or database information.";
return;
} else {
//changelog: parms -> parm (typo) throughout
$sql = 'SELECT * FROM ' . $parm['table'] . ' WHERE ' . ($parm['key_column'] ? $parm['key_column'] : 'oauth_consumer_key') . '=' . "'" . mysqli_real_escape_string($link, $oauth_consumer_key) . "'";
$result = mysqli_query($link, $sql);
//echo $sql;
$num_rows = mysqli_num_rows($result);
if ($num_rows != 1) {
$this->message = "Your consumer is not authorized oauth_consumer_key=" . $oauth_consumer_key . " " . $sql;
return;
} else {
while ($row = mysqli_fetch_assoc($result)) {
$secret = $row[$parm['secret_column'] ? $parm['secret_column'] : 'secret'];
$context_id = $row[$parm['context_column'] ? $parm['context_column'] : 'context_id'];
if ($context_id) {
$this->context_id = $context_id;
}
//changelog: look for token. probably get rid of this at some point, since I've separated the key/secret table from tokens
//if($row['token'] !="")$token = $_SESSION['token']=$row['token'];
//setcookie("ttable",$parm['table']);//use this to update bad tokens in get_token_domain
$this->row = $row;
break;
}
if (!is_string($secret)) {
$this->message = "Could not retrieve secret oauth_consumer_key=" . $oauth_consumer_key;
return;
}
}
}
}
// Verify the message signature
$store = new TrivialOAuthDataStore();
$store->add_consumer($oauth_consumer_key, $secret);
$server = new OAuthServer($store);
$method = new OAuthSignatureMethod_HMAC_SHA1();
$server->add_signature_method($method);
$request = OAuthRequest::from_request();
$this->basestring = $request->get_signature_base_string();
try {
$server->verify_request($request);
$this->valid = true;
} catch (Exception $e) {
$this->message = $e->getMessage();
return;
}
// Store the launch information in the session for later
$newinfo = array();
foreach ($_POST as $key => $value) {
if ($key == "basiclti_submit") {
continue;
}
if (strpos($key, "oauth_") === false) {
$newinfo[$key] = $value;
continue;
}
if ($key == "oauth_consumer_key") {
$newinfo[$key] = $value;
continue;
}
}
$this->info = $newinfo;
if ($usesession == true and strlen(session_id()) > 0) {
$_SESSION['_basic_lti_context'] = $this->info;
unset($_SESSION['_basiclti_lti_row']);
unset($_SESSION['_basiclti_lti_context_id']);
if ($this->row) {
$_SESSION['_basiclti_lti_row'] = $this->row;
}
if ($this->context_id) {
$_SESSION['_basiclti_lti_context_id'] = $this->context_id;
}
}
if ($this->valid && $doredirect) {
$this->redirect();
$this->complete = true;
}
}
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
require_once '../core/init.php';
$server = new OAuthServer();
switch ($_SERVER['PATH_INFO']) {
case '/request_token':
$server->requestToken();
exit;
case '/access_token':
$server->accessToken();
exit;
case '/authorize':
# logon
assert_logged_in();
try {
$server->authorizeVerify();
$server->authorizeFinish(true, 1);
} catch (OAuthException $e) {
header('HTTP/1.1 400 Bad Request');
/***********************************************************************/
/* ATutor */
/***********************************************************************/
/* Copyright (c) 2002-2010 */
/* Inclusive Design Institute */
/* http://atutor.ca */
/* */
/* This program is free software. You can redistribute it and/or */
/* modify it under the terms of the GNU General Public License */
/* as published by the Free Software Foundation. */
/***********************************************************************/
// $Id$
require_once 'OAuth.php';
require_once '../Shindig/ATutorOAuthDataStore.php';
$oauthDataStore = new ATutorOAuthDataStore();
try {
$server = new OAuthServer($oauthDataStore);
$server->add_signature_method(new OAuthSignatureMethod_HMAC_SHA1());
$server->add_signature_method(new OAuthSignatureMethod_PLAINTEXT());
$request = OAuthRequest::from_request();
$token = $server->fetch_access_token($request);
if ($token) {
echo $token->to_string();
}
echo $token;
} catch (OAuthException $e) {
echo $e->getMessage();
} catch (Exception $e) {
echo $e->getMessage();
}
/**
* Function to initilise the lti class
* @param bool $usesession
* @param bool $doredirect
* @return
*/
public function init_lti($usesession = true, $doredirect = false)
{
if (!isset($_REQUEST["lti_message_type"])) {
$_REQUEST["lti_message_type"] = '';
}
if (!isset($_REQUEST["lti_version"])) {
$_REQUEST["lti_version"] = '';
}
if (!isset($_REQUEST["resource_link_id"])) {
$_REQUEST["resource_link_id"] = '';
}
// If this request is not an LTI Launch, either
// give up or try to retrieve the context from session
if (!is_lti_request()) {
if ($usesession === false) {
return;
}
if (strlen(session_id()) > 0) {
if (isset($_SESSION['_lti_row'])) {
$row = $_SESSION['_lti_row'];
}
if (isset($row)) {
$this->row = $row;
}
if (isset($_SESSION['_lti_context_id'])) {
$context_id = $_SESSION['_lti_context_id'];
}
if (isset($context_id)) {
$this->context_id = $context_id;
}
if (isset($_SESSION['_lti_context'])) {
$info = $_SESSION['_lti_context'];
}
if (isset($info)) {
$this->info = $info;
$this->valid = true;
return;
}
$this->message = "Could not find context in session";
return;
}
$this->message = "Session not available";
return;
}
// Insure we have a valid launch
if (empty($_REQUEST["oauth_consumer_key"])) {
$this->message = "Missing oauth_consumer_key in request";
return;
}
$oauth_consumer_key = $_REQUEST["oauth_consumer_key"];
// Find the secret - either form the parameter as a string or
// look it up in a database from parameters we are given
$secret = false;
$row = false;
if (is_string($this->parm)) {
$secret = $this->parm;
} else {
if (!is_array($this->parm)) {
$this->message = "Constructor requires a secret or database information.";
return;
} else {
if ($this->parm['dbtype'] == 'mysql') {
$sql = 'SELECT * FROM ' . ($this->parm['table'] ? $this->parm['table'] : 'lti_keys') . ' WHERE ' . ($this->parm['key_column'] ? $this->parm['key_column'] : 'oauth_consumer_key') . '=' . "'" . mysql_real_escape_string($oauth_consumer_key) . "'";
$result = mysql_query($sql);
$num_rows = mysql_num_rows($result);
if ($num_rows != 1) {
$this->message = "Your consumer is not authorized oauth_consumer_key=" . $oauth_consumer_key;
return;
} else {
while ($row = mysql_fetch_assoc($result)) {
$secret = $row[$this->parms['secret_column'] ? $this->parms['secret_column'] : 'secret'];
$context_id = $row[$this->parms['context_column'] ? $this->parms['context_column'] : 'context_id'];
if ($context_id) {
$this->context_id = $context_id;
}
$this->row = $row;
break;
}
if (!is_string($secret)) {
$this->message = "Could not retrieve secret oauth_consumer_key=" . $oauth_consumer_key;
return;
}
}
} elseif ($this->parm['dbtype'] == 'mysqli') {
if ($this->db->error) {
try {
throw new Exception("0MySQL error {$mysqli->error} <br> Query:<br> {$query}", $msqli->errno);
} catch (Exception $e) {
echo "Error No: " . $e->getCode() . " - " . $e->getMessage() . "<br >";
echo nl2br($e->getTraceAsString());
}
}
$stmt = $this->db->prepare("SELECT secret,context_id,name FROM " . $this->parm['table_prefix'] . "lti_keys WHERE oauth_consumer_key=? AND `deleted` IS NULL");
$db = $this->db;
if ($db->error) {
try {
throw new Exception("0MySQL error {$db->error} <br> Query:<br> ", $db->errno);
} catch (Exception $e) {
echo "Error No: " . $e->getCode() . " - " . $e->getMessage() . "<br >";
echo nl2br($e->getTraceAsString());
exit;
}
}
$stmt->bind_param('s', $oauth_consumer_key);
$stmt->execute();
$stmt->store_result();
$stmt->bind_result($rsecret, $rcontext_id, $rname);
$stmt->fetch();
$secret = $rsecret;
$name = $rname;
if (isset($rcontext_id)) {
$this->context_id = $rcontext_id;
}
$stmt->close();
if (!is_string($secret)) {
$this->message = "Could not retrieve secret oauth_consumer_key=" . $oauth_consumer_key;
return;
}
}
}
}
// Verify the message signature
$store = new TrivialOAuthDataStore();
$store->add_consumer($oauth_consumer_key, $secret);
$server = new OAuthServer($store);
$method = new OAuthSignatureMethod_HMAC_SHA1();
$server->add_signature_method($method);
$request = OAuthRequest::from_request();
$this->basestring = $request->get_signature_base_string();
try {
$server->verify_request($request);
$this->valid = true;
} catch (Exception $e) {
$this->message = $e->getMessage();
return;
}
// Store the launch information in the session for later
$newinfo = array();
foreach ($_POST as $key => $value) {
if ($key == "basiclti_submit") {
continue;
}
if (strpos($key, "oauth_") === false) {
$newinfo[$key] = $value;
continue;
}
if ($key == "oauth_consumer_key") {
$newinfo[$key] = $value;
continue;
}
}
$newinfo['oauth_consumer_secret'] = $secret;
$this->info = $newinfo;
if ($usesession == true and strlen(session_id()) > 0) {
$_SESSION['_lti_context'] = $this->info;
unset($_SESSION['_lti_row']);
unset($_SESSION['_lti_context_id']);
if ($this->row) {
$_SESSION['_lti_row'] = $this->row;
}
if ($this->context_id) {
$_SESSION['_lti_context_id'] = $this->context_id;
}
}
if ($this->valid && $doredirect) {
$this->redirect();
$this->complete = true;
}
}
function __construct()
{
parent::__construct(new FKOAuthDataStore());
$this->add_signature_method(new OAuthSignatureMethod_PLAINTEXT());
$this->add_signature_method(new OAuthSignatureMethod_HMAC_SHA1());
}
if (!is_https()) {
header("HTTP/1.0 403 Forbidden - HTTPS must be used");
die;
}
/*
* Always announce XRDS OAuth discovery
*/
header('X-XRDS-Location: ' . get_config('wwwroot') . 'webservice/oauthv1/services.xrds');
/*
* Initialize OAuth store
*/
require_once get_config('docroot') . 'webservice/libs/oauth-php/OAuthServer.php';
require_once get_config('docroot') . 'webservice/libs/oauth-php/OAuthStore.php';
OAuthStore::instance('Mahara');
global $server;
$server = new OAuthServer();
!isset($_SERVER['PATH_INFO']) && ($_SERVER['PATH_INFO'] = null);
// Now - what kind of OAuth interaction are we handling?
if ($_SERVER['PATH_INFO'] == '/request_token') {
$server->requestToken();
exit;
} else {
if ($_SERVER['PATH_INFO'] == '/access_token') {
$server->accessToken();
exit;
} else {
if ($_SERVER['PATH_INFO'] == '/authorize') {
# logon
require_once 'pieforms/pieform.php';
if (!$USER->is_logged_in()) {
$form = new Pieform(auth_get_login_form());
if ( $hashsig != $signature ) {
doError("Invalid sourcedid");
}
// Check the OAuth Signature
$oauth_consumer_key = $basiclti_tool_row['resourcekey'];
$oauth_secret = $basiclti_tool_row['password'];
if ( ! isset($oauth_secret) ) doError("Not permitted");
if ( ! isset($oauth_consumer_key) ) doError("Not permitted");
// Verify the message signature
$store = new TrivialOAuthDataStore();
$store->add_consumer($oauth_consumer_key, $oauth_secret);
$server = new OAuthServer($store);
$method = new OAuthSignatureMethod_HMAC_SHA1();
$server->add_signature_method($method);
$request = OAuthRequest::from_request();
$basestring = $request->get_signature_base_string();
try {
$server->verify_request($request);
} catch (Exception $e) {
doError($e->getMessage());
}
// Beginning of actual grade processing
if ( $message_type == "basicoutcome" ) {
/**
* Tries to authenticate the LTI launch request based on the provided launch parameters.
*
* @return bool True if authenticated, otherwise false.
*/
public function isAuthenticated()
{
// Check if a consumer key was provided. If not, we have nothing to authenticate and therefore return false.
if (!empty($this->launchParams["oauth_consumer_key"])) {
// Check if a data store of consumer secrets has been set. If not, authentication has been disabled.
if (!isset($this->consumerSecrets)) {
return true;
}
// Perform OAuth verification on the launch parameters.
$server = new OAuthServer($this->consumerSecrets);
$server->add_signature_method(new OAuthSignatureMethod_HMAC_SHA1());
$request = OAuthRequest::from_request(null, null, $_REQUEST);
try {
$server->verify_request($request);
return true;
} catch (Exception $ex) {
if (Config::get("debug")) {
exit($ex);
}
return false;
}
}
return false;
}
private function authenticate()
{
#
### Set debug mode
#
$this->debugMode = isset($_REQUEST['custom_debug']);
#
### Get the consumer instance
#
$this->isOK = isset($_REQUEST['oauth_consumer_key']);
if ($this->isOK) {
$this->consumer_instance = new LTI_Tool_Consumer_Instance($_REQUEST['oauth_consumer_key'], $this->dbTableNamePrefix);
$this->isOK = $this->consumer_instance->isEnabled();
if ($this->debugMode && !$this->isOK) {
$this->reason = 'Tool consumer instance has not been enabled by the tool provider.';
}
}
if ($this->isOK) {
try {
$store = new LTI_OAuthDataStore($this);
$server = new OAuthServer($store);
$method = new OAuthSignatureMethod_HMAC_SHA1();
$server->add_signature_method($method);
$request = OAuthRequest::from_request();
$res = $server->verify_request($request);
} catch (Exception $e) {
$this->isOK = FALSE;
if (empty($this->reason)) {
$this->reason = 'OAuth signature check failed - perhaps an incorrect secret.';
}
}
}
if ($this->isOK) {
$this->consumer_instance->defaultEmail = $this->defaultEmail;
#
### Set the request context
#
if (isset($_REQUEST['resource_link_id'])) {
$id = trim($_REQUEST['resource_link_id']);
} else {
$id = trim($_REQUEST['context_id']);
}
$this->context = new LTI_Context($this->consumer_instance, $id);
if (isset($_REQUEST['context_id'])) {
$this->context->lti_context_id = trim($_REQUEST['context_id']);
}
if (isset($_REQUEST['resource_link_id'])) {
$this->context->lti_resource_id = trim($_REQUEST['resource_link_id']);
}
$title = '';
if (isset($_REQUEST['context_title'])) {
$title = trim($_REQUEST['context_title']);
}
if (isset($_REQUEST['resource_link_title']) && strlen(trim($_REQUEST['resource_link_title'])) > 0) {
if (!empty($title)) {
$title .= ': ';
}
$title .= trim($_REQUEST['resource_link_title']);
}
if (empty($title)) {
$title = "Course {$this->context->id}";
}
$this->context->title = $title;
// Save LTI parameters
foreach ($this->lti_settings_names as $name) {
if (isset($_REQUEST[$name])) {
$this->context->setSetting($name, $_REQUEST[$name]);
} else {
$this->context->setSetting($name, NULL);
}
}
// Delete any existing custom parameters
foreach ($this->context->getSettings() as $name => $value) {
if (strpos($name, 'custom_') === 0) {
$this->context->setSetting($name);
}
}
// Save custom parameters
foreach ($_REQUEST as $name => $value) {
if (strpos($name, 'custom_') === 0) {
$this->context->setSetting($name, $value);
}
}
$this->context->save();
}
if ($this->isOK) {
#
### Set the user instance
#
$this->user = new LTI_User($this->context, trim($_REQUEST['user_id']));
#
### Set the user name
#
$firstname = isset($_REQUEST['lis_person_name_given']) ? $_REQUEST['lis_person_name_given'] : '';
$lastname = isset($_REQUEST['lis_person_name_family']) ? $_REQUEST['lis_person_name_family'] : '';
$fullname = isset($_REQUEST['lis_person_name_full']) ? $_REQUEST['lis_person_name_full'] : '';
$this->user->setNames($firstname, $lastname, $fullname);
#
### Set the user email
#
$email = isset($_REQUEST['lis_person_contact_email_primary']) ? $_REQUEST['lis_person_contact_email_primary'] : '';
$this->user->setEmail($email, $this->defaultEmail);
#
### Set the user roles
#
if (isset($_REQUEST['roles'])) {
$this->user->roles = explode(',', $_REQUEST['roles']);
}
#
### Save the user instance
#
if (isset($_REQUEST['lis_result_sourcedid'])) {
$this->user->lti_result_sourcedid = $_REQUEST['lis_result_sourcedid'];
$this->user->save();
}
#
### Update the consumer instance
#
if ($this->consumer_instance->state != $_REQUEST['lti_version']) {
$this->consumer_instance->state = $_REQUEST['lti_version'];
$this->consumer_instance->save();
}
#
### Initialise the consumer and check for changes
#
$this->consumer = new LTI_Tool_Consumer($_REQUEST['oauth_consumer_key'], $this->dbTableNamePrefix);
$doSave = FALSE;
// do not delete any existing consumer name if none is passed
if (isset($_REQUEST['tool_consumer_info_product_family_code'])) {
$name = $_REQUEST['tool_consumer_info_product_family_code'];
if (isset($_REQUEST['tool_consumer_info_version'])) {
$name .= "-{$_REQUEST['tool_consumer_info_version']}";
}
if ($this->consumer->consumer_name != $name) {
$this->consumer->consumer_name = $name;
$doSave = TRUE;
}
} else {
if (isset($_REQUEST['ext_lms']) && $this->consumer->consumer_name != $_REQUEST['ext_lms']) {
$this->consumer->consumer_name = $_REQUEST['ext_lms'];
$doSave = TRUE;
}
}
if (isset($_REQUEST['launch_presentation_css_url'])) {
if ($this->consumer->css_path != $_REQUEST['launch_presentation_css_url']) {
$this->consumer->css_path = $_REQUEST['launch_presentation_css_url'];
$doSave = TRUE;
}
} else {
if (isset($_REQUEST['ext_launch_presentation_css_url']) && $this->consumer->css_path != $_REQUEST['ext_launch_presentation_css_url']) {
$this->consumer->css_path = $_REQUEST['ext_launch_presentation_css_url'];
$doSave = TRUE;
} else {
if (!empty($this->consumer->css_path)) {
$this->consumer->css_path = NULL;
$doSave = TRUE;
}
}
}
if ($doSave) {
$this->consumer->save();
}
#
### Check if a share arrangement is in place for this context
#
$this->isOK = $this->checkForShare();
}
return $this->isOK;
}
/**
* Check the authenticity of the LTI launch request.
*
* The consumer, resource link and user objects will be initialised if the request is valid.
*
* @return boolean True if the request has been successfully validated.
*/
protected function _authenticate()
{
if (!$this->Provider->isOK) {
return false;
}
try {
$this->loadModel('Lti.OAuthStore');
$store = new OAuthStore($this->Provider, $this->Consumer);
$server = new OAuthServer($this->OAuthStore);
$method = new OAuthSignatureMethod_HMAC_SHA1();
$server->add_signature_method($method);
$request = OAuthRequest::from_request();
$res = $server->verify_request($request);
} catch (Exception $e) {
$this->Provider->isOK = FALSE;
if (empty($this->Provider->reason)) {
if ($this->Provider->debugMode) {
$oconsumer = new OAuthConsumer($this->Consumer->consumer_key, $this->Consumer->secret);
$signature = $request->build_signature($method, $oconsumer, FALSE);
$this->Provider->reason = $e->getMessage();
if (empty($this->Provider->reason)) {
$this->Provider->reason = 'OAuth exception';
}
$this->Provider->details[] = 'Timestamp: ' . time();
$this->Provider->details[] = "Signature: {$signature}";
$this->Provider->details[] = "Base string: {$request->base_string}]";
} else {
$this->Provider->reason = 'OAuth signature check failed - perhaps an incorrect secret or timestamp.';
}
}
return false;
}
return true;
}
